UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025121112.upa.cvt Date: 1200Z 11 DEC 25 Searching for FAIR... Searching the city database file for: FAIR ... Date:1200Z 11 DEC 25 Station: FAIR WMO ident: 68263 Latitude: -25.92 Longitude: 28.22 Elevation: 1500.00 ------------------------------------------------------------------------------- LEV PRES HGHT TEMP DEWP RH DD WETB DIR SPD THETA THE-V THE-W THE-E W mb m C C % C C deg knt K K K K g/kg ------------------------------------------------------------------------------- 0 1000 152 1 925 825 SFC 853 1500 22.2 15.2 65 7.0 17.4 360 6 309.1 311.5 296.2 348.1 12.84 3 850 1557 20.2 13.2 64 7.0 15.5 350 5 307.3 309.4 294.7 341.4 11.29 4 828 1782 17.8 11.8 68 6.0 13.9 350 6 307.1 309.1 294.1 339.0 10.56 5 718 2982 8.0 8.0 100 0.0 8.0 4 5 309.1 310.9 293.8 337.8 9.42 6 717 2993 7.6 6.6 93 1.0 7.0 5 5 308.8 310.4 293.0 334.9 8.56 7 710 3075 10.6 3.6 62 7.0 6.6 7 5 313.0 314.3 293.0 334.8 7.00 8 700 3193 11.0 0.0 47 11.0 5.0 10 4 314.7 315.7 292.3 332.0 5.47 9 698 3217 10.8 -1.2 43 12.0 4.4 14 4 314.7 315.7 291.9 330.6 5.02 10 596 4504 -0.7 -6.7 64 6.0 -3.4 191 11 315.9 316.7 291.3 328.4 3.88 11 590 4585 -1.3 -6.3 69 5.0 -3.6 199 12 316.1 316.9 291.5 329.1 4.05 12 575 4790 -1.3 -25.3 14 24.0 -8.4 221 11 318.5 318.6 289.2 321.4 0.85 13 516 5644 -6.3 -28.3 16 22.0 -12.1 275 5 322.4 322.6 290.3 325.0 0.72 14 501 5874 -6.1 -53.1 1 47.0 -13.3 280 3 325.4 325.4 290.5 325.6 0.05 15 500 5890 -6.1 -53.1 1 47.0 -13.3 280 3 325.6 325.6 290.5 325.8 0.06 16 492 6016 -6.3 -46.3 3 40.0 -13.4 315 3 326.9 326.9 291.0 327.3 0.12 17 400 7600 -18.5 -39.5 14 21.0 -22.0 175 9 330.9 331.0 292.3 332.1 0.31 18 333 8941 -28.9 -49.9 11 21.0 -30.9 207 18 334.5 334.5 293.0 335.0 0.12 19 300 9680 -34.3 -55.3 10 21.0 -35.7 220 20 337.0 337.0 293.6 337.3 0.07 20 283 10088 -37.5 -57.5 11 20.0 -38.6 220 30 338.1 338.1 293.9 338.3 0.06 21 264 10568 -39.3 -61.3 8 22.0 -40.4 220 42 342.3 342.3 294.9 342.4 0.04 22 257 10752 -41.1 -62.1 9 21.0 -42.0 220 46 342.2 342.3 294.9 342.4 0.03 23 250 10940 -42.5 -59.5 14 17.0 -43.2 220 51 342.9 342.9 295.1 343.1 0.05 24 200 12400 -54.5 -59.2 56 4.7 -54.6 240 61 346.5 346.5 295.9 346.7 0.07 25 190 12726 -57.5 -59.4 79 1.9 -57.5 242 64 346.8 346.8 296.0 347.0 0.07 26 189 12759 -57.7 -60.0 75 2.3 -57.8 242 64 347.0 347.0 296.0 347.2 0.06 27 179 13101 -59.1 -72.1 17 13.0 -59.3 245 67 350.1 350.1 296.7 350.2 0.01 28 177 13171 -59.6 -72.3 18 12.7 -59.7 245 68 350.5 350.5 296.7 350.5 0.01 29 150 14190 -66.3 -75.3 27 9.0 -66.4 230 37 355.9 355.9 297.9 355.9 0.01 30 129 15093 -71.7 -79.7 29 8.0 -71.8 254 27 361.9 361.9 299.1 361.9 0.01 31 120 15521 -70.7 -81.7 18 11.0 -70.8 266 23 371.3 371.3 300.8 371.3 0.00 32 100 16590 -75.5 -85.5 19 10.0 -75.5 295 11 381.9 381.9 302.5 381.9 0.00 33 89 17263 -77.3 -88.3 16 11.0 -77.3 90 5 391.2 391.2 304.0 391.2 0.00 34 82 17733 -77.7 -87.7 18 10.0 -77.7 76 9 399.7 399.7 305.2 399.7 0.00 35 70 18650 -73.3 -85.3 14 12.0 -73.3 50 18 427.6 427.6 308.6 427.6 0.00 36 69 18734 -72.9 -84.9 15 12.0 -73.0 53 18 430.2 430.2 308.9 430.2 0.00 37 62 19359 -74.5 -86.5 14 12.0 -74.6 72 17 440.0 440.0 309.9 440.0 0.00 38 60 19551 -70.9 -84.9 11 14.0 -71.0 77 17 452.2 452.2 311.1 452.2 0.00 39 50 20640 -67.3 -86.3 5 19.0 -67.5 110 16 484.9 484.9 313.8 484.9 0.00 40 36 22649 -60.1 -89.1 1 29.0 -60.9 78 18 551.3 551.3 318.2 551.3 0.00 41 31 23576 -61.7 -91.7 1 30.0 -62.4 63 19 571.1 571.1 319.2 571.1 0.00 42 30 23780 -59.5 -90.5 1 31.0 -60.4 60 19 582.4 582.4 319.8 582.5 0.00 43 22 25767 -49.9 -83.9 1 34.0 -53.2 114 8 665.1 665.1 323.3 665.2 0.02 44 20 26390 -50.7 -84.7 1 34.0 -54.0 130 4 681.0 681.0 323.8 681.1 0.02 45 16 27830 -54.9 -86.9 1 32.0 -57.6 712.2 712.2 324.8 712.3 0.01 46 15 28244 -53.1 -86.1 1 33.0 -56.3 731.4 731.4 325.4 731.5 0.02 TRP 89 17263 -77.3 -88.3 16 11.0 -77.3 90 5 391.2 391.2 304.0 391.2 0.00 WND 177 13171 -59.6 -72.3 18 12.7 -59.7 245 68 350.5 350.5 296.7 350.5 0.01 Sounding variables and indices 1000-500 mb thick: 5738.00 m Freezing level: 602.21 mb = 4425.63 m = 14519.60 ft Wetbulb zero: 640.65 mb = 3915.31 m = 12845.36 ft Precipitable water: 0.84 inches Sfc-500 mean rel hum: 51.98 % Est. max temperature: 27.03 C = 80.66 F Sfc-Lift cond lev (LCL): 769.44 mb = 2399.55 m = 7872.44 ft T: 12.76 C 700-500 lapse rate: 6.34 C/km ThetaE index: 19.68 C Layer 850.0- 590.0 mb Conv cond level (CCL): 737.23 mb = 2759.29 m = 9052.67 ft Mean mixing ratio: 10.39 g/kg Conv temperature: 21.87 C = 71.36 F Cap Strength: 3.60 C Lifted Index: 1.03 C Risk: Showers probable Lifted Index @300 mb: 0.31 C Lifted Index @700 mb: 3.60 C Showalter Index: 0.09 C Risk: Thunderstorms probable Total Totals Index: 45.60 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 26.30 C Cross Totals Index: 19.30 C K Index: 28.50 Risk: 40-60 % chance of thunderstorms Sweat Index: 171.40 Risk: None Energy Index: -2.94 Risk: Severe Thunderstorms probable Parcel Indices Parcel: using 100 mb layer CAPE (B+): 69.28 J/kg Max Up Vert Vel: 11.77 m/s Conv Inhibition (B-): 8.01 J/kg Cap Strength: 3.56 C Lift Cond Lev (LCL): 748.49 mb = 2631.77 m = 8634.33 ft Lev Free Conv (LFC): 723.49 mb = 2917.58 m = 9572.01 ft Equ Level (EL): 713.49 mb = 3033.91 m = 9953.66 ft B at Equ Level: -0.64 J/kg Max Parcel Lev (MPL): 713.49 mb = 3033.91 m = 9953.66 ft Wind level data Storm motion: 306 at 4 knt ---------------------------------------------------------- TRUE/GROUND REL | STORM REL LEV P H DIR SPD U V | DIR SPD U V mb m knt m/s | knt m/s ---------------------------------------------------------- 0 853 1500 360 6 -0.0 -6.0 | 47 5 -3.6 -3.4 1 850 1557 350 5 0.9 -4.9 | 50 4 -2.8 -2.3 2 794 2134 350 8 1.4 -7.9 | 23 6 -2.3 -5.3 3 766 2438 350 9 1.6 -8.9 | 18 7 -2.1 -6.2 4 700 3193 10 4 -0.7 -3.9 | 73 5 -4.3 -1.3 5 636 3962 140 4 -2.6 3.1 | 132 8 -6.2 5.7 6 589 4572 200 12 4.1 11.3 | 182 14 0.5 13.9 7 546 5182 265 8 8.0 0.7 | 232 5 4.3 3.3 8 500 5890 280 3 3.0 -0.5 | 162 2 -0.7 2.1 9 468 6401 65 4 -3.6 -1.7 | 97 7 -7.3 0.9 10 432 7010 225 3 2.1 2.1 | 162 5 -1.5 4.7 11 400 7600 175 9 -0.8 9.0 | 159 12 -4.4 11.6 12 367 8230 215 16 9.2 13.1 | 199 17 5.5 15.7 13 337 8839 205 18 7.6 16.3 | 192 19 4.0 18.9 14 300 9680 220 20 12.9 15.3 | 207 20 9.2 17.9 15 250 10940 220 51 32.8 39.1 | 215 51 29.1 41.7 16 200 12400 240 61 52.8 30.5 | 236 59 49.2 33.1 17 177 13171 245 68 61.6 28.7 | 242 66 58.0 31.4 18 150 14190 230 37 28.3 23.8 | 223 36 24.7 26.4 19 100 16590 295 11 10.0 -4.6 | 288 7 6.3 -2.0 20 89 17263 90 5 -5.0 0.0 | 107 9 -8.6 2.6 21 70 18650 50 18 -13.8 -11.6 | 63 20 -17.4 -8.9 22 50 20640 110 16 -15.0 5.5 | 113 20 -18.7 8.1 23 30 23780 60 19 -16.5 -9.5 | 71 21 -20.1 -6.9 24 20 26390 130 4 -3.1 2.6 | 128 8 -6.7 5.2 Wind Parameters Mean winds (0-6000m): 275.8 at 6.0 knts Storm direction: 305.8 at 4.5 knts Shear (0-3000m) pos: 3.1 neg: 0.3 tot: 3.4 10-3/s Storm rel Dir Shear (0-3000m): 127.8 deg Storm rel helicity (0-3000m) pos: 47.8 neg: -3.0 tot: 44.7 m^2/s^2 ave: 14.9 10^-3 m/s^2 rel: 0.64 Storm rel vorticity (0-3000m) horiz: 5.0 stream: 3.2 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 9.77 Bulk Shear: 7.10 m/s Storm Parameters ------------------------------------------------------------------------------- Depth Mean Inflow| Shear | Helicity | Vorticity AGL Dir Spd Dir Spd| Pos Neg Tot| Pos Neg Tot Ave Rel | Hor Strm m knt knt| 10^-3/s | m^2/s^2 m/s^2 | 10^-3/s ------------------------------------------------------------------------------- 500 350 6 38 4| 0.0 1.8 1.8| 0.0 -1.7 -1.7 -3.4 -0.45| 3.4 -1.5 1000 350 7 28 5| 0.7 0.9 1.6| 0.6 -3.0 -2.4 -2.4 -0.38| 2.7 -1.0 1500 352 7 31 5| 0.9 0.6 1.5| 5.5 -3.0 2.5 1.7 0.16| 3.1 0.5 2000 356 6 41 5| 1.8 0.4 2.3| 11.0 -3.0 7.9 4.0 0.37| 3.6 1.3 2500 360 6 48 5| 2.4 0.4 2.7| 23.0 -3.0 19.9 8.0 0.54| 4.1 2.2 3000 359 6 45 5| 3.1 0.3 3.4| 47.8 -3.0 44.7 14.9 0.64| 5.0 3.2 4000 295 7 276 3| 1.1 0.2 1.3| 76.1 -3.9 72.2 18.1 0.62| 5.8 3.6 5000 295 6 273 2| 0.9 0.2 1.1| 82.8 -6.5 76.3 15.3 0.46| 6.0 2.7 6000 276 6 229 3| 0.8 0.4 1.2| 97.1 -9.2 87.8 14.6 0.45| 6.2 2.8 Wrote GIF file: /home/apache/climate/data/raob//FAIR/skewt/FAIR.skewt.20251211.12.gif